Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun topic

2 senses of topic

Sense 1
subject, topic, theme -- (the subject matter of a conversation or discussion; "he didn't want to discuss that subject"; "it was a very sensitive topic"; "his letters were always on the theme of love")
       => message, content, subject matter, substance -- (what a communication that is about something is about)

Sense 2
topic, subject, issue, matter -- (some situation or event that is thought about; "he kept drifting off the topic"; "he had been thinking about the subject for several years"; "it is a matter for the police")
       => content, cognitive content, mental object -- (the sum or range of what has been perceived, discovered, or learned)